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发明名称
Perfectionnements apportés aux dispositifs pour nettoyer les canaux et cours d'eau
摘要
申请公布号
FR1030331(A)
申请公布日期
1953.06.11
申请号
FRD1030331
申请日期
1950.12.29
申请人
发明人
ACHA CARLOS DE VILLOTA Y
分类号
E02B3/02
主分类号
E02B3/02
代理机构
代理人
主权项
地址
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